$274 Find Cheap Flights from Reagan Washington National Airport to United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to the United Kingdom departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Reagan-National to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$512
Edinburgh
Edinburgh2 stops$629
Manchester
Manchester2 stops$605
Birmingham
Birmingham2 stops$637
Belfast
Belfast2 stops$643
Inverness
Inverness2 stops$587
Bristol
Bristol2 stops$845
Aberdeen
Aberdeen2 stops$629
Liverpool
Liverpool2 stops$827
Leeds
Leeds2 stops$716
Cardiff
Cardiff2 stops$839
Newquay
Newquay3 stops$1,237
London
London1 stop$512
Edinburgh
Edinburgh2 stops$629
Manchester
Manchester2 stops$605
Birmingham
Birmingham2 stops$637
Belfast
Belfast2 stops$643
Inverness
Inverness2 stops$587
Bristol
Bristol2 stops$845
Aberdeen
Aberdeen2 stops$629
Liverpool
Liverpool2 stops$827
Leeds
Leeds2 stops$716
Cardiff
Cardiff2 stops$839
Newquay
Newquay3 stops$1,237

Book Cheap Reagan-National to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to the United Kingdom

Wed, Sep 24 - Sun, Sep 28
Air Canada Logo
4:35 pm - 9:35 amDCA-LHR
12h 00m1 stop
Air Canada Logo
6:50 am - 3:51 pmLHR-DCA
14h 01m2 stops
$512Air Canada
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Wed, Nov 19 - Sun, Nov 23
 Logo
4:10 pm - 7:10 amDCA-LHR
10h 00m1 stop
 Logo
6:50 am - 3:31 pmLHR-DCA
13h 41m2 stops
Tue, Oct 7 - Tue, Oct 21
British Airways Logo
2:55 pm - 8:10 amDCA-LGW
12h 15m1 stop
British Airways Logo
3:05 pm - 10:57 pmLGW-DCA
12h 52m1 stop
$542British Airways
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Mon, Sep 29 - Fri, Oct 10
American Airlines Logo
3:35 pm - 8:10 amDCA-LGW
11h 35m1 stop
American Airlines Logo
3:05 pm - 10:57 pmLGW-DCA
12h 52m1 stop
$558American Airlines
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Tue, Sep 23 - Tue, Sep 30
United Airlines Logo
4:00 pm - 6:45 amDCA-LHR
9h 45m1 stop
United Airlines Logo
9:30 am - 3:51 pmLHR-DCA
11h 21m1 stop
$558United Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
American Airlines Logo
2:55 pm - 8:10 amDCA-LGW
12h 15m1 stop
American Airlines Logo
3:05 pm - 10:57 pmLGW-DCA
12h 52m1 stop
$559American Airlines
Find Deal
Sun, Sep 21 - Tue, Sep 30
United Airlines Logo
1:00 pm - 6:20 amDCA-LHR
12h 20m1 stop
United Airlines Logo
9:30 am - 4:22 pmLHR-DCA
11h 52m1 stop
$562United Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
British Airways Logo
1:39 pm - 8:10 amDCA-LGW
13h 31m1 stop
British Airways Logo
3:05 pm - 7:50 amLGW-DCA
21h 45m1 stop
$564British Airways
Find Deal
Mon, Sep 22 - Wed, Oct 1
JetBlue Logo
5:55 pm - 9:35 amDCA-LGW
10h 40m1 stop
JetBlue Logo
12:10 pm - 8:55 pmLGW-DCA
13h 45m1 stop
$598JetBlue
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Mon, Sep 22 - Thu, Oct 2
JetBlue Logo
6:59 pm - 9:35 amDCA-LGW
9h 36m1 stop
JetBlue Logo
12:10 pm - 8:55 pmLGW-DCA
13h 45m1 stop
$599JetBlue
Find Deal
Booking Insights

KAYAK's insights & trends for Reagan-National to the United Kingdom flights

Get data-powered insights and trends into flights from Reagan-National to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to the United Kingdom is February, when tickets cost $605 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $991 and $979 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to United Kingdom?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom clicked on KAYAK for each day over the last 12 months.

For Reagan Washington National Airport to United Kingdom, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from United Kingdom back to Reagan Washington National Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to the United Kingdom, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$274
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Reagan Washington National Airport to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Reagan Washington National Airport to United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Reagan Washington National Airport to United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the morning, when round-trip flights cost $765 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $968.

Reviews of the top 5 airlines serving from Reagan-National to the United Kingdom

 
Need help choosing which airline to fly with from Reagan-National to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7977 reviews
7.9Entertainment
8.2Boarding
7.3Food
8.5Crew
7.9Comfort
Airline reviews

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

2.0 MediocreAnonymous, Sep 2025SNA - SEA
Read more Delta reviews

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

We were given vouchers we couldn’t use with a 5.5 hour delay

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The flight was canceled 3 hours after original take off time

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

Had a nice little suite although I couldn’t close the door (but I didn’t ask anyone to help). 5K is a nice seat and very private (you look in on first class). Enjoyable flight and nice crew.

Although the crew were great and the good nice, I might as well have been on Ryanair for the amount of space I had. Not good enough BA. I’d rather pay more and not feel like a human sardine.

Love the A380 - loads of room. Headphone socket on my seat didn’t work. Sounds like a trivial issue? Well when flying long-haul the in-flight entertainment is what keeps you going so when it doesn’t work it’s a disaster. Pay attention to the details please BA. Spoiled what was otherwise an excellent flight with the usual brilliant crew.

Crew were fantastic can’t fault them at all. Couldn’t do enough for us

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